Announcement on the Estimated Limit of External Guarantees for 2026

Securities Code: 002310 Securities Abbreviation: Oriental New Energy Announcement No.: 2026-038 Beijing Oriental Ecology New Energy Co., Ltd. Announcement on the Estimated Limit of External Guarantees for 2026 The Company and all members of the Board of Directors guarantee the information disclosed is true, accurate, and complete, and free from false records, misleading statements, or material omissions. Special Reminder: The guarantees are provided by Beijing Oriental Ecology New Energy Co., Ltd. (hereinafter referred to as the "Company") to its subsidiaries and among its subsidiaries. Among these, the limit for guarantees provided by the Company to subsidiaries with an asset-liability ratio exceeding 70% shall not exceed RMB 3.735 billion, accounting for 155.06% of the Company's net assets as audited most recently. Investors are kindly requested to pay attention to relevant risks. I. Overview of Guarantees On May 18, 2026, the Company held the 17th meeting of the 9th Board of Directors, which reviewed and approved the "Proposal on the Estimated Limit of External Guarantees for 2026". The Board agreed to allocate a guarantee limit of RMB 3.935 billion to subsidiaries with guarantee needs based on their development requirements and submit it for review at the 2025 Annual Shareholders' Meeting. To ensure the normal production and operation of subsidiaries at all levels and enhance their financing capabilities, in accordance with the Company's business development and financing needs, the Board of Directors agreed and proposed for review at the 2025 Annual Shareholders' Meeting, for a period of 12 months from the date of approval by the 2025 Annual Shareholders' Meeting:

1. The Company provides guarantees for the credit and other businesses of its subsidiaries with banks, insurance companies, trusts, financial leasing companies, and other financial institutions;
2. Subsidiaries at all levels (including subsidiaries to their subsidiaries, and subsidiaries to their subordinate subsidiaries, etc.) provide mutual guarantees for credit and other businesses with banks, insurance companies, trusts, and other financial institutions in accordance with relevant national regulations. The following table shows the guaranteed parties and the estimated guarantee limits: Guarantor Guaranteed Party Shareholding Ratio of Guarantor Latest Period-End Asset-Liability Ratio Balance of Guarantees to Date Newly Added Guarantee Limit Proportion of Guarantee Limit to Company's Latest Audited Net Assets Whether Related Party Beijing Hufei Xingda Environmental Protection Technology Co., Ltd. 100% 86.98% 0.00 0.50 2.08% Beijing Fuhua Hengyu New Energy Technology Co., Ltd. 100% 94.94% 0.00 2.00 8.30% Chibi Weshida New Energy Technology Co., Ltd. 100% 100.58% 12.47 14.50 60.20% No Tianjin Dongfang Tiansai Construction Engineering Co., Ltd. 100% 42.72% 0.00 2.00 8.30% Haicheng Ruihai New Energy Wind Power Generation Co., Ltd. 100% 94.73% 2.82 2.85 11.83% Beijing Electric Power Investment Ruixiang New Energy Development Co., Ltd. 80% 87.95% 0.00 17.50 72.65% Total 15.29 39.35 163.36% Note: The guarantee limit in this table represents the maximum limit provided to the subsidiary and its subordinate holding companies. The actual guarantee amount will be subject to the actual financing of the subsidiaries at all levels, and the relevant guarantee matters will be subject to the officially signed guarantee agreements. The Board of Directors proposes that the Shareholders' Meeting authorize the Board of Directors to make decisions on the above guarantee matters. Simultaneously with the authorization from the Shareholders' Meeting, the Board will further sub-authorize the Company's General Manager to make decisions and sign relevant documents for guarantee matters within the approved limit. II. Basic Information of Guaranteed Parties (I) Hufei Xingda

1. Name: Beijing Hufei Xingda Environmental Protection Technology Co., Ltd.
2. Date of Establishment: May 21, 2014
3. Registered Address: Room 203, West Second Floor, No. 19 Pinggu North Street, Pinggu District, Beijing
4. Legal Representative: Liu Wen
5. Registered Capital: RMB 100 million
6. Business Scope: General items: Technology services, technology development, technology consulting, technology exchange, technology transfer, technology promotion; petroleum and natural gas technology services; engineering management services; non-metallic minerals and products sales; mechanical equipment sales; building materials sales; mechanical equipment leasing; general equipment repair; special equipment repair; electrical equipment repair; electronic, mechanical equipment maintenance (excluding special equipment); engineering technology services (excluding planning, management, survey, design, and supervision); water pollution control; solid waste management; resource recycling technology consulting; information technology consulting services; general cargo warehousing services (excluding items requiring permits such as dangerous chemicals); environmental protection special equipment sales; chemical product sales (excluding chemical products requiring permits); environmental consulting services; soil pollution control and remediation services; oil drilling and extraction special equipment sales; mechanical equipment research and development; landscape greening engineering; urban greening management; labor services (excluding labor dispatch); wastewater treatment and recycling; environmental emergency management services; data processing and storage support services; information consulting services (excluding information consulting services requiring permits); software development; software sales. (Except for projects subject to approval according to law, business activities can be independently carried out with the business license.) Licensed projects: Land petroleum and natural gas exploration; construction project supervision; construction project construction; road freight transport (excluding dangerous goods); employment agency services. (Projects subject to approval according to law can be carried out after approval by the relevant departments. Specific business projects are subject to the approval documents or permits of the relevant departments.) (Prohibited from engaging in business activities that are prohibited or restricted by national and municipal industrial policies.)
7. Equity Structure: Hufei Xingda is a wholly-owned subsidiary of the Company. It has been verified that it is not a dishonest judgment debtor.
8. Major Financial Indicators: As of December 31, 2025, Hufei Xingda had total assets of RMB 31.6075 million, total liabilities of RMB 24.6157 million, contingent liabilities of RMB 0, and net assets of RMB 6.9918 million; operating revenue for 2025 was RMB 50.9234 million, total profit was RMB -2.5097 million, and net profit was RMB -2.5540 million. As of March 31, 2026, Hufei Xingda had total assets of RMB 46.7175 million, total liabilities of RMB 40.6345 million, contingent liabilities of RMB 0, and net assets of RMB 6.0830 million; operating revenue for January-March 2026 was RMB 5.641 million, total profit was RMB -0.9073 million, and net profit was RMB -0.9088 million. (Note: The aforementioned 2025 financial data has been audited, and the first-quarter 2026 financial data has not been audited.) (II) Fuhua Hengyu
9. Name: Beijing Fuhua Hengyu New Energy Technology Co., Ltd.
10. Date of Establishment: August 4, 2025
11. Registered Address: Floors 1-7, Building 104, No. 10 Jiuxianqiao North Road, Chaoyang District, Beijing
12. Legal Representative: Zhang Dong
13. Registered Capital: RMB 50 million
14. Business Scope: General items: New energy technology research and development; solar power generation technology services; wind power generation technology services; network technology services; engineering technology services (excluding planning, management, survey, design, and supervision); power generation technology services; carbon emission reduction, carbon conversion, carbon capture, and carbon storage technology research and development; photovoltaic equipment and component sales; electronic component retail; electronic product sales; environmental protection special equipment sales; power facility equipment manufacturing; technology services, technology development, technology consulting, technology exchange, technology transfer, technology promotion. (Except for projects subject to approval according to law, business activities can be independently carried out with the business license.) Licensed projects: Power generation business, power transmission business, power supply (distribution) business; construction project construction; electrical installation services. (Projects subject to approval according to law can be carried out after approval by the relevant departments. Specific business projects are subject to the approval documents or permits of the relevant departments.) (Prohibited from engaging in business activities that are prohibited or restricted by national and municipal industrial policies.)
15. Equity Structure: Fuhua Hengyu is a wholly-owned subsidiary of the Company. It has been verified that it is not a dishonest judgment debtor.
16. Major Financial Indicators: As of December 31, 2025, Fuhua Hengyu had total assets of RMB 257.10 million, total liabilities of RMB 257.00 million, contingent liabilities of RMB 0, and net assets of RMB 0.10 million; operating revenue for 2025 was RMB 0.10 million, total profit was RMB 0.10 million, and net profit was RMB 0.10 million. As of March 31, 2026, Fuhua Hengyu had total assets of RMB 272.51 million, total liabilities of RMB 258.73 million, contingent liabilities of RMB 0, and net assets of RMB 13.77 million; operating revenue for January-March 2026 was RMB 16.00 million, total profit was RMB 13.67 million, and net profit was RMB 13.67 million. (Note: The aforementioned 2025 financial data has been audited, and the first-quarter 2026 financial data has not been audited.) (III) Chibi Weshida
17. Name: Chibi Weshida New Energy Technology Co., Ltd.
18. Date of Establishment: June 24, 2024
19. Registered Address: Room 602, Unit 1, Building 5, Yinhewan Community, Yinhewan Road, Puqi Street, Chibi City, Xianning City, Hubei Province
20. Legal Representative: Zhu Jun
21. Registered Capital: RMB 1 million
22. Business Scope: General items: Solar power generation technology services, wind power generation technology services, network technology services, engineering technology services (excluding planning, management, survey, design, and supervision), power generation technology services, carbon emission reduction, carbon conversion, carbon capture, and carbon storage technology research and development, photovoltaic equipment and component sales, electronic component retail, electronic product sales, environmental protection special equipment sales, power facility equipment manufacturing, new energy technology research and development, technology services, technology development, technology consulting, technology exchange, technology transfer, technology promotion. (Except for licensed businesses, independent business activities can be carried out as permitted by laws and regulations not prohibited or restricted.) Licensed projects: Power generation business, power transmission business, power supply (distribution) business, construction project construction, electrical installation services. (Projects subject to approval according to law can be carried out after approval by the relevant departments. Specific business projects are subject to the approval documents or permits of the relevant departments.)
23. Equity Structure: Chibi Weshida is a wholly-owned subsidiary of the Company. It has been verified that it is not a dishonest judgment debtor.
24. Major Financial Indicators: As of December 31, 2025, Chibi Weshida had total assets of RMB 150,598.45 million, total liabilities of RMB 150,535.12 million, contingent liabilities of RMB 0, and net assets of RMB 63.33 million; operating revenue for 2025 was RMB 16,252.18 million, total profit was RMB -1,992.81 million, and net profit was RMB -2,278.54 million. As of March 31, 2026, Chibi Weshida had total assets of RMB 138,381.34 million, total liabilities of RMB 139,179.15 million, contingent liabilities of RMB 0, and net assets of RMB -797.82 million; operating revenue for January-March 2026 was RMB 3,082.76 million, total profit was RMB -871.04 million, and net profit was RMB -944.54 million. (Note: The aforementioned 2025 financial data has been audited, and the first-quarter 2026 financial data has not been audited.) (IV) Dongfang Tiansai
25. Name: Tianjin Dongfang Tiansai Construction Engineering Co., Ltd.
26. Date of Establishment: November 13, 2023
27. Registered Address: Room 4151, Building 169, Hena South Road, Tianjin Free Trade Pilot Zone (Airport Economic Area)
28. Legal Representative: Li Xuefeng
29. Registered Capital: RMB 50 million
30. Business Scope: Licensed projects: Construction project construction; construction project design; electrical installation services; installation of civil air defense engineering protective equipment; installation, maintenance, and testing of power transmission, power supply, and power reception facilities; building demolition (excluding blasting operations); cultural relics protection engineering construction; construction labor subcontracting. (Projects subject to approval according to law can be carried out after approval by the relevant departments. Specific business projects are subject to the approval documents or permits of the relevant departments.) General items: Residential interior decoration and renovation; landscape greening engineering; earthwork engineering; sports venue facility engineering; metal door and window engineering; construction machinery and equipment leasing; mechanical equipment leasing; loading and unloading; fire technology services; engineering management services; high-efficiency energy-saving technology research and development in the power industry; engineering technology services (excluding planning, management, survey, design, and supervision); labor services (excluding labor dispatch); solar power generation technology services; advanced power electronic equipment sales; photovoltaic equipment and component sales; power distribution switchgear sales; mechanical and electrical equipment sales. (Except for projects subject to approval according to law, business activities can be independently carried out with the business license.)
31. Equity Structure: Dongfang Tiansai is a secondary wholly-owned subsidiary of the Company. It has been verified that it is not a dishonest judgment debtor.
32. Major Financial Indicators: As of December 31, 2025, Dongfang Tiansai had total assets of RMB 12,262.41 million, total liabilities of RMB 5,615.16 million, contingent liabilities of RMB 0, and net assets of RMB 6,647.26 million; operating revenue for 2025 was RMB 11,952.22 million, total profit was RMB -280.93 million, and net profit was RMB -210.70 million. As of March 31, 2026, Dongfang Tiansai had total assets of RMB 11,206.85 million, total liabilities of RMB 4,787.79 million, contingent liabilities of RMB 0, and net assets of RMB 6,419.05 million; operating revenue for January-March 2026 was RMB 0, total profit was RMB -213.92 million, and net profit was RMB -228.20 million. (Note: The aforementioned 2025 financial data has been audited, and the first-quarter 2026 financial data has not been audited.) (V) Haicheng Ruihai
33. Name: Haicheng Ruihai New Energy Wind Power Generation Co., Ltd.
34. Date of Establishment: March 14, 2018
35. Registered Address: Building 32-S5, Ancunwei Lianghai Jinke Qianshan North Street, Haicheng Economic and Technological Development Zone, Anshan City, Liaoning Province
36. Legal Representative: Liu Dapeng
37. Registered Capital: RMB 80.4314 million
38. Business Scope: Energy resource development and utilization; development and construction of wind power, solar power, and other renewable energy sources; operation management of wind power plants; operation and management of wind power and solar power generation; wind power and solar power generation technology consulting and services. (Projects subject to approval according to law can be carried out after approval by the relevant departments. Specific business projects are subject to the approval documents or permits of the relevant departments.)
39. Equity Structure: Haicheng Ruihai is a secondary wholly-owned subsidiary of the Company. It has been verified that it is not a dishonest judgment debtor.
40. Major Financial Indicators: As of December 31, 2025, Haicheng Ruihai had total assets of RMB 32,311.85 million, total liabilities of RMB 30,784.24 million, net assets of RMB 1,527.61 million; operating revenue for 2025 was RMB 3,661.09 million, and net profit was RMB 335.91 million. As of March 31, 2026, Haicheng Ruihai had total assets of RMB 33,964.58 million, total liabilities of RMB 32,173.92 million, net assets of RMB 179.07 million; operating revenue for January-March 2026 was RMB 1,213.94 million, total profit was RMB 263.05 million, and net profit was RMB 237.30 million. (Note: The aforementioned financial data has not been audited.) (VI) Electric Power Investment Ruixiang
41. Name: Beijing Electric Power Investment Ruixiang New Energy Development Co., Ltd.
42. Date of Establishment: September 28, 2023
43. Registered Address: Room 701, Building 3, No. 28 Financial Street, Xicheng District, Beijing
44. Legal Representative: Tan Xiaojuan
45. Registered Capital: RMB 200 million
46. Business Scope: Licensed projects: Power generation business, power transmission business, power supply (distribution) business. (Projects subject to approval according to law can be carried out after approval by the relevant departments. Specific business projects are subject to the approval documents or permits of the relevant departments.) General items: Solar power generation technology services; wind power generation technology services; biomass energy technology services; engineering management services; technology services, technology development, technology consulting, technology exchange, technology transfer, technology promotion; energy storage technology services. (Except for projects subject to approval according to law, business activities can be independently carried out with the business license.) (Prohibited from engaging in business activities that are prohibited or restricted by national and municipal industrial policies.)
47. Equity Structure: The Company holds an 80% equity interest in Electric Power Investment Ruixiang. It has been verified that it is not a dishonest judgment debtor.
48. Major Financial Indicators: As of December 31, 2025, Electric Power Investment Ruixiang had total assets of RMB 292,826.16 million, total liabilities of RMB 258,606.23 million, contingent liabilities of RMB 0, and net assets of RMB 34,219.93 million; operating revenue for 2025 was RMB 30,733.24 million, and net profit was RMB 6,824.27 million. As of March 31, 2026, Electric Power Investment Ruixiang had total assets of RMB 286,508.28 million, total liabilities of RMB 251,992.52 million, contingent liabilities of RMB 0, and net assets of RMB 34,515.76 million; operating revenue for January-March 2026 was RMB 5,684.67 million, total profit was RMB 267.21 million, and net profit was RMB 174.80 million. (Note: The aforementioned financial data has not been audited.) III. Main Content of Guarantee Agreement The Company provides guarantees for its subsidiaries and among its subsidiaries.
49. Guarantee Method: Joint and several liability guarantee and other methods.
50. Guarantee Amount: Total amount not exceeding RMB 3.935 billion. The above guarantee limit is a preliminary plan formulated by the Company based on the self-assessed operating needs of its subsidiaries within the consolidated statement scope and preliminary consultations with relevant banks, insurance companies, trusts, financial leasing companies, and other financial institutions. The actual guarantee amount will be subject to the actual financing of the subsidiaries at all levels. The Company will disclose in a timely manner in accordance with relevant regulations. IV. Board of Directors' Opinion The Company's provision of guarantees for its subsidiaries and among its subsidiaries can improve financing efficiency and reduce financing costs, thereby strongly ensuring the normal production and operation of the Company's subsidiaries. The provision of guarantees by the Company for its subsidiaries, or among its subsidiaries, is based on the needs of the Company's daily operations and is conducive to the Company's business development. To meet the development needs of subsidiaries at all levels, based on the calculations of their respective operating needs, the Board of Directors agreed to allocate a guarantee limit of RMB 3.935 billion to subsidiaries with guarantee needs and submit it for review at the Annual Shareholders' Meeting. The Company's provision of guarantees for its subsidiaries and among its subsidiaries aligns with the Company's development strategy, commercial practices, and the relevant regulations of the China Securities Regulatory Commission. V. Cumulative Amount of External Guarantees and Overdue Guarantees After this round of guarantees, the total guarantee limit for the Company to its subsidiaries and among its subsidiaries will be RMB 3.935 billion. The guarantee limit for companies outside the consolidated statement is RMB 0. As of the current date, the outstanding guarantee balance is RMB 15.29 billion, accounting for 63.50% of the Company's net assets as audited most recently. The outstanding balance of external guarantees (excluding guarantees for subsidiaries) is RMB 0. The Company and its subsidiaries have no overdue debts involving guarantees, no guarantees involved in litigation, and no situations where guarantee liability needs to be borne due to losing a lawsuit. VI. Documents for Reference Resolution of the 17th Meeting of the 9th Board of Directors. Hereby announced. Beijing Oriental Ecology New Energy Co., Ltd. Board of Directors May 18, 2026